Can-fastening



J. D. ELLIS.

CAN FASTENING.

APPLICATION FILED APR. 3. 1919.

1,3 3,701 Patented July 5, 1921.

v omen STATES rarest orrics.

JOHN D. ELLIS, 0F PHIIEADELPHIA, PENNSYLVANIA, ASSIGNOR, BY MESNE ASSIGN- JYIENTS, TO GEORGE D. ELLIS'86 SONS, INCORPORATED, OF SYLVANIA, A CORPORATION OF PENNSYLVANIA..

. CAN-FASTENING.

To all whom it may concern: e I Be it known that I, JOHN D. ELLIs, a'citizen'of the United States,'residing in the city and county of Philadelphia, State of Pennsylvania, have invented a new and useful Can-Fastening, of which the following is a specification.

My invention relatesto a fastener for the v ting continued use of the keepers and tonguesJ f e The invention is satisfactorily illustrated in the accompanying drawing, but the important instrumentalities thereof may be varied, and so it is to be understood that the invention is not limited'to the specific details shown and described,'as long asithey are within the spirit or scope of the chains.

Figure 1 represents aside elevation of a can fastener embodying my invention.

Fig. 2 represents a top or plan view thereof. i 1

Fig. 3 represents a vertical: section of the fastener on an enlarged scale, the members of the fastener being separated. A 1

Fig. ere'presents a similar vertical section, the members of the locked.

Fig. 5 represents atop or plan view of a portion of the cover. v

Fig? 6 representsa' side elevation thereof. Similarnumerals of reference indicate corresponding parts in the figures. Referring-t0 the drawings 1 designates the body of the. can, and 2 designates the cover thereof On the ex-' terior of said body near the top thereof are the vertically-extending tongues 3 whose lower portions are riveted or otherwise connected firmly with the body, leaving the upper portions thereof free and set out from said body, and havingits upper end rising above the upper end of said body.

On the side rim & of the cover are the keepers 5 which extend vertically and outwardly from the adjacent portions of said Specification of Letters latentl Pzttje nted July Application filed April 3, 1919. Serial no; 287,183,

fastener being inter i fittlng into the latter, and then h id rim in theform of loops leaving in the'keep- PHILADELPHIA, PENN- ers the vertical passages 6 the bottoms and tops ofwhich are uncovered so that said passages are open throughout from end to end.

In the rim 4 above said keepers are the slots"? which are cut in said rim to allow the keepers to be pressed out from the rim which is accomplished by a die or swage' employed for the purpose to convert the portions of the metal of the rim into said keepers and cause the top edges 8 of the keepers to be smooth and regular in the direction of their width.

The bottoms of the keepers are curled as at 9 continuous of the remaining curl 10 of the bottom of the rim of the cover, said curls or rolls 9 extending outwardly from said curl 10 on the bottom edges of the opposite sides of the keepers and then along the bottom edge of the front walls thereof, and so reinforcing all of said edges on the sides and front preserving the outturned clearopen condition of the keepers throughout and preventing the existence of raw edges on the bottom of the keepers which otherwise would obstruct the free entrance of the tongues 3 into said passages and cut the fingers of the operator in presenting the top ends of the 'tongues to the bottom ends 0 the walls of thepassages. 1 It will be noted that the tongues 3 have their lower portions convex on their inner side, and'the body .of the can on the neck thereof concave on itsouter side, the former tongues are riveted to the body while the engaging concave and convex portions serve tening such as the rivet shown is sufficient for primarily fastening the tongue tothe body, while said convex and concave portions form deflections additionally interlocking the tongue and body preventing the former from turning on said pivot, and so the tongue will retain its upright position. The main lengths of the tongues project upwardly and are set out some distance from said neck whereby they are properly alined with the bottoms of the passages 6 so that the latter will readily receive the upper ends of said tongues. Again, the keepers are in the rim of the cover, and the openings necessarily forming the same are covered on the back by the neck of the body of the can so that there will be no leakage thereat. Then as said neck is not cut to form tongues therein, there will be no leakage through said neck below said cover.

The curls 9 on the bottom edges of the walls of the keepers 5 stiffen or reinforce the same and prevent the presentation of a sharp edge at the bottom of the side rim 4: of the cover, as has been stated. This avoids a possibility of the hand being cut in the insertion of the tongues 3 into said keepers, but as such curls 9 stiffen the bottom edges of the walls of the keepers, the swaging-out of said walls is rendered more difficult owing to the resistance of said curls 9, and so said walls would buckle and cause the outer faces of the keepers to be irregular and rough. Hence the removal of some of the metal of said rim 4 forming the well defined recess 7 in the latter rearward of the top.

edges of the keepers permits the metal of the rim to be more readily swaged-out to form said keepers and preserve the smoothness of the metal of the latter, as best shown in Fig. 6, while the tops of the keepers are thrown out from the adjacent portions of the side rim so that the vertical passages or spaces formed by said keepers are unobstructed from bottom to top, especially at the top see Fig. 3, so that the tongues 3 may be passed readily through the keepers and then conveniently turned down over the tops of the keepers and clenched thereon, as best shown in Fig. ft, the upper portions of the tongues may be turned out and bent down over the top edges of the keepers in looking the tongues with the keepers. In opening the can the clenched down portions of the tongues may be turned up and the bends may be straightened out as they will partly enter the recesses 7 as the tongues are pressed inwardly in working the same again to straight lines, and so there will be no resistance or obstruction to the unbending of the tongues while the passages in the keepers 5 are clear from top to bottom to allow the cover to be raised and the keepers to ride on the straightened out tongues.

The operation is as follows, the parts being in the position shown in Fig. 3.

The cover is lowered and placed on the top of the body and so disposed that the keepers 5 and tongues 3 are in register.

. Y'Vhen the cover is lowered to full extent the keepers have passed downwardly over the tongues so that the main lengths of the tongues occupy the passages 6 of the keepers 5 and their upper portions or ends project above the upper edges of said keepers. Then said portions are bent down over the outer walls of the keepers forming the hooks 11 which lock the coveron the body and pre vent the formerfrom rising. and disconnection from the latter.

The slots 7 are covered and closed by the upper portion of the body behind the same, thus preventing the contents of the body leaking through said slots. The top of the ,coveris left integral and so the contents of the body cannot leak or escape through the same.

When the cover is tobe removed, the hooks 11 are bent upwardly or straightened out to the original condition of the tongues'when the cover may be raised, the keepers sliding freely upwardly over the portions of the tongues previously occupying the same, the cover then being clear of the tongues and displaced from the body as again shown in Fig. 3.

Having thus described my invention what I claim as new and desire to secure by Letters Patent, is':

1. A. body having a tongue rising therefrom, and a cover having in its side rim a keeper forming a vertical passage'se't out on its side walls and front wall from the adjacent portions of said rim, the bottom portion of said tongue being secured to the outer side. of said body, said. outer side of the body and said inner face of the tongue having deflected interlocking surfaces.

2. A can body, a tongue rising from the upper portion of said body, and a set-out keeper adapted to receive said tongue and have the latter clenched on said keeper, said body and tongue havingconvex and concave portions respectively interfittin'g each other, said tongue having its lower portion adapted to be secured to said body and further interlocked by said convex andconcave portions respectively.

3. A can bod having a concave portion on its outer face adjacent its neck, a tongue secured between its ends to said-body and having on its inner face a convex portion near its lower end fitting said concave portion, said tongue extending upwardly from said convex portion, and set out a distance from the neck of the body, andfa cover for said can body having in its side rim akeeper forming a passage alined with said tongue and over which keeper a portion of said tongue may be downwardly deflected to hold thecover in place. 

